This is what I have... it was given to me, and I'm still trying to figure it out! That front quick-release clip is a bit confusing for a sling noob like me.

The only thing I don't like so day is that the forward strap is in a spot where impacts the switch on my side-mounted light, and turns it on sometimes when it's slung up front. A minor issue that would probably be the case with any 2- or 3-point setup, with the way I have my light.

There is a YouTube video out there by blackhawk that makes it much easier.